Triangles Quiz 8

If $\triangle ABC \sim \triangle DEF, \angle A + \angle B$ = 130°, then $\angle F$ = ………

$\triangle ABC \sim \triangle PQR,$ If AB = 3.6, PQ = 2.4, PR = 5.4, then AC =

In $\triangle ABC, \overline{PQ} \parallel \overline{AB}$ P, Q are on BC and AC. If CQ : QA = 1 : 3 and CP = 4, then BC =

If $\triangle ABC \sim \triangle DEF,$ such that 2AB = DE and BC = 8 cm, then EF = ………. cm

$\triangle ABC \sim \triangle PQR ,$ if AB = 6, BC = 4, AC = 8 and PR = 6, then PQ + QR = ……

The ratio of perimeters of two similar triangles is 4 : 9, then the ratio of their areas is ………

The perimeters of two similar triangles are 20 cm and 30 cm then the ratio of the areas of the triangles is ………

The areas of two similar triangles are 16 $cm^2$ and 25 $cm^2$ respectively, then the ratio of their corresponding sides is …………

$\triangle ABC \sim \triangle DEF$ . If BC = 3 cm, EF = 4 cm and ar $(\triangle ABC)$ = 54 $cm^2$then ar $(\triangle DEF)$ =

The ratio of altitudes of two similar triangles is 4 : 9, then ratio of their areas is